Moodle Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) Vulnerability - CVE-2013-4524
Directory traversal vulnerability in repository/filesystem/lib.php in Moodle through 2.2.11 2.3.x before 2.3.10 2.4.x before 2.4.7 and 2.5.x before 2.5.3 allows remote authenticated users to read arbitrary files via a .. (dot dot) in a path.